大约有 30,000 项符合查询结果(耗时:0.0420秒) [XML]
How is Pythons glob.glob ordered?
I have written the following Python code:
10 Answers
10
...
Python: Find in list
...exactly equivalent to
matches = filter(fulfills_some_condition, lst)
in Python 2. Here you can see higher-order functions at work. In Python 3, filter doesn't return a list, but a generator-like object.
Finding the first occurrence
If you only want the first thing that matches a condition (but ...
Python loop that also accesses previous and next values
... accessing the previous, current, and next items? Like this C/C++ code, in Python?
14 Answers
...
Equivalent C++ to Python generator pattern
I've got some example Python code that I need to mimic in C++. I do not require any specific solution (such as co-routine based yield solutions, although they would be acceptable answers as well), I simply need to reproduce the semantics in some manner.
...
Why is it string.join(list) instead of list.join(string)?
...
This was discussed in the String methods... finally thread in the Python-Dev achive, and was accepted by Guido. This thread began in Jun 1999, and str.join was included in Python 1.6 which was released in Sep 2000 (and supported Unicode). Python 2.0 (supported str methods including join) wa...
Get path from open file in Python
...g with it, then you can do that in the following conventional way using os Python module.
>>> import os
>>> f = open('/Users/Desktop/febROSTER2012.xls')
>>> os.path.dirname(f.name)
>>> '/Users/Desktop/'
This way you can get hold of the directory structure.
...
How to retrieve the dimensions of a view?
...0. This happens when I format the grid dynamically and also when I use an XML version.
16 Answers
...
Is there a Python equivalent of the C# null-coalescing operator?
...cing operator.
In fact, it may even be useful to have this side-effect of Python. Since you know what values evaluates to false, you can use this to trigger the default value without using None specifically (an error object, for example).
In some languages this behavior is referred to as the Elvis...
Using property() on classmethods
... class foo(object):
... _var = 5
... class __metaclass__(type): # Python 2 syntax for metaclasses
... pass
... @classmethod
... def getvar(cls):
... return cls._var
... @classmethod
... def setvar(cls, value):
... cls._var = value
...
>>>...
How can strings be concatenated?
How to concatenate strings in python?
7 Answers
7
...
